Proaqua Test JBL Direct Co2 Refill

Determines the optimal carbon dioxide content for freshwater aquariums.
Procedure: fill plastic cuvette with sample water, add reagent drop by drop until pink colour remains stable.
Number of drops x 2 = CO2 content in mg/l.
To use during periods of poor or no plant growth and fish mortality: once a week.
You will find detailed information and troubleshooting tips about water analysis on the JBL website in Essentials/Aquarium.
Package contents: 1 CO2 quick test incl. 2 reagents, plastic cuvette and colour chart.
Reagent refill separately available.